Summary of Methods: This scientific opinion paper examined the feasibility of using ecological concepts to evaluate and describe riparian systems using examples from streams and rivers in 9 western states (Arizona, New Mexico, Wyoming, Montana, California, Idaho, Oregon, Nevada, and Colorado).

Article Summary / Main Points: To establish relationships and understand the process pathways, all stream characteristics (e.g. stream type, landscape features, etc.) in riparian sites must be fully described using the site progression concept. These water features should be recorded in the subsection of the landscape section of the site description. The concept of site progression which denotes major physical state changes within a site was also proposed. It can also be described as a site change which may result in a different potential natural plant community for the site. Site classification and inventory techniques utilized on uplands can be used on riparian areas with some improvements to maintain consistency in evaluations at a management level, though this requires special attention be given to hydrology, site dynamics and map unit design.

Annotation: To establish relationships and understand the process pathways, all stream characteristics (e.g. stream type, landscape features, etc.) in riparian sites must be fully described using the site progression concept. These water features should be recorded in the subsection of the landscape section of the site description. The concept of site progression which denotes major physical state changes within a site was also proposed. It can also be described as a site change which may result in a different potential natural plant community for the site. Site classification and inventory techniques utilized on uplands can be used on riparian areas with some improvements to maintain consistency in evaluations at a management level, though this requires special attention be given to hydrology, site dynamics and map unit design.